The Perfect Insider

Shiki Magata, a brilliant programmer, has spent years living alone in a research facility tucked away on a distant island. She rarely interacts with visitors, but university student Moe Nishinosono and associate professor Souhei Saikawa still try to find her. But their conversation is cut short as they become embroiled in a murder mystery involving a locked room. There are many hidden secrets, and nothing is what it seems. A horrifying and seemingly impossible crime occurs in a remote facility, and Saikawa and Moe must discover the truth about the murder and Magata's mysterious past.